Ordinary cold-rolled sheet SPCC SPCC refers to the steel ingot that is continuously rolled into the required thickness of steel plate coil or sheet material through a cold rolling mill. The surface of SPCC lacks any protection and is easily oxidized when exposed to air, especially in humid environments where the oxidation rate accelerates and dark red rust appears. The surface needs to be painted, electroplated, or other protective measures when used.
The substrate of galvanized steel plate SECC SECC is a general cold-rolled steel coil, which becomes an electrogalvanized product after undergoing degreasing, pickling, electroplating, and various post-treatment processes on a continuous electrogalvanizing production line. SECC not only has the mechanical properties and similar processability of ordinary cold rolled steel sheets, but also has superior corrosion resistance and decorative appearance. It has great competitiveness and substitutability in the market of electronic products, home appliances, and furniture. For example, SECC is commonly used in computer chassis.
Hot-dip galvanization steel sheet SGCC Hot-dip galvanization steel coil refers to the semi-finished products after hot rolling and pickling or cold rolling, after cleaning and annealing, immersed in a solution zinc bath with a temperature of about 460 ° C, so that the steel sheet is coated with zinc, and then quenched, tempered, leveled and chemically treated. SGCC material is harder than SECC material, with poor ductility (avoiding deep drawing design), thicker zinc layer, and poor weldability.
Stainless steel SUS301 has a lower Cr (chromium) content and poor corrosion resistance compared to SUS304. However, after cold processing, it can achieve good tensile strength and hardness, and has good elasticity. It is mainly used for spring springs and EMI prevention.
Stainless steel SUS304 is one of the most widely used stainless steels. Due to its presence of Ni (nickel), it is more resistant to corrosion and heat than steel containing Cr (chromium). It has excellent mechanical properties, no heat treatment hardening, and no elasticity.